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Sep. 10, 2014:
A total of 174 experimentally verified S-nitrosylation sites on 94 S-nitrosylated proteins from individualized human colorectal cancer tissues using a label-free quantitation strategy.

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Protein Name: Protein SON

UniprotKB/SwissProt ID: P18583 (P18583)

Gene Name: SON

Organism: Homo sapiens (Human)

Function: RNA-binding protein that acts as a mRNA splicing cofactor by promoting efficient splicing of transcripts that possess weak splice sites. Specifically promotes splicing of many cell-cycle and DNA-repair transcripts that possess weak splice sites, such as TUBG1, KATNB1, TUBGCP2, AURKB, PCNT, AKT1, RAD23A, and FANCG. Probably acts by facilitating the interaction between Serine/arginine-rich proteins such as SRSF2 and the RNA polymerase II. Also binds to DNA; binds to the consensus DNA sequence: 5'-GA[GT]AN[CG][AG]CC-3'. May indirectly repress hepatitis B virus (HBV) core promoter activity and transcription of HBV genes and production of HBV virions. Essential for correct RNA splicing of multiple genes critical for brain development, neuronal migration and metabolism, including TUBG1, FLNA, PNKP, WDR62, PSMD3, PCK2, PFKL, IDH2, and ACY1 (PubMed:27545680)

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Nucleus speckle

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR014720 dsRBD_dom
IPR000467 G_patch_dom
IPR032922 SON
IPR036322 WD40_repeat_dom_sf

The S-nitrosylation sites of P18583

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 2109 GATIEELTEK C KQIAQSKEDD   
2 92 DLKEGSRKSR C VSVQTDPTDE